The seventh annual Southland Community Garden Walk, sponsored by the National Council of Jewish Women South Cook Section, will take place from 10 a.m. to 4 p.m. on Sunday, June 25.Six gardens will be featured in Flossmoor, Homewood and Olympia Fields. Garden experts will be available in each. Advance tickets are $20 and can be purchased at three Homewood locations: Art4Soul, 18135 Harwood Ave.; Beans and Greens, 1941 Ridge Road; and Ebels Ace Hardware, 18410 Governors Highway.Tickets will cost $25 on the day of the walk and can be purchased at Goldberg Park . . .